/* ============================================
   广州华良信息科技有限公司 - 官网样式
   简约大气 · 科技感 · 响应式
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --color-primary: #dc2626;
  --color-primary-dark: #b91c1c;
  --color-primary-light: #ef4444;
  --color-primary-bg: #fef2f2;
  --color-accent: #3b82f6;
  --color-dark: #0f172a;
  --color-slate: #1e293b;
  --color-text: #334155;
  --color-muted: #64748b;
  --color-light: #f8fafc;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --color-success: #10b981;

  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #450a0a 40%, #b91c1c 100%);
  --gradient-primary: linear-gradient(135deg, #dc2626 0%, #dc2626 100%);
  --gradient-card: linear-gradient(135deg, #fef2f2 0%, #eff6ff 100%);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --font-sans: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container-max: 1200px;
  --header-height: 78px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 25px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  line-height: 1.7;
  background: var(--color-white);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul,
ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 容器 ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 通用排版 ---------- */
.section {
  padding: 100px 0;
}

.section-sm {
  padding: 60px 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-muted);
  text-align: center;
  margin-bottom: 60px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 5px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
  letter-spacing: 1px;
  white-space: nowrap;
}

.text-center {
  text-align: center;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: #dc2626;
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(220, 38, 38, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.btn-dark-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-dark-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-lg {
  padding: 16px 44px;
  font-size: 1.1rem;
}

/* ---------- 导航栏 ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--color-border);
}

.nav {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: #dc2626;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo-text .logo-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  white-space: nowrap;
}

.nav-logo-text .logo-sub {
  font-size: 0.75rem;
  color: var(--color-muted);
  font-weight: 400;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-slate);
  border-radius: var(--radius-sm);
  position: relative;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

.nav-cta {
  display: none;
}

.nav-cta .btn {
  padding: 10px 22px;
  font-size: 0.85rem;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero 区域 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(220, 38, 38, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(185, 28, 28, 0.16) 0%, transparent 50%),
    radial-gradient(circle at 60% 20%, rgba(239, 68, 68, 0.12) 0%, transparent 50%);
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- 页面横幅 (内页) ---------- */
.page-banner {
  position: relative;
  padding: 160px 0 80px;
  background: var(--gradient-hero);
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 30% 50%, rgba(220, 38, 38, 0.16) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(185, 28, 28, 0.14) 0%, transparent 50%);
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.page-banner h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.page-banner-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 480px;
  line-height: 1.7;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a:hover {
  color: var(--color-white);
}

.breadcrumb-sep {
  opacity: 0.5;
}

.breadcrumb-current {
  color: rgba(255, 255, 255, 0.8);
}

/* ---------- 服务卡片 ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
  align-items: stretch;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--gradient-primary);
}

.service-icon svg {
  width: 30px;
  height: 30px;
  stroke: var(--color-primary);
  transition: var(--transition);
}

.service-card:hover .service-icon svg {
  stroke: var(--color-white);
}

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text);
}

.service-features li::before {
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  flex-shrink: 0;
  position: relative;
}

.service-features li::after {
  content: "";
}

.check-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--color-primary);
}

/* ---------- 优势区域 ---------- */
.advantages {
  background: var(--color-light);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.advantage-item {
  text-align: center;
  padding: 32px 20px;
}

.advantage-num {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.advantage-item h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.advantage-item p {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
  min-height: 3.4em;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- 虚位待客卡片 ---------- */
.vacancy-card {
  background: var(--color-light);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100%;
}

.vacancy-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
}

.vacancy-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  border: 2px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
  color: var(--color-muted);
}

.vacancy-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.vacancy-card p {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.6;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6em;
}

.vacancy-tag {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 14px;
  font-size: 0.8rem;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  border-radius: 20px;
  font-weight: 600;
}

/* ---------- 合作伙伴 ---------- */
.partners-section {
  background: var(--color-white);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.partner-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.partner-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.partner-logo {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.partner-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.partner-card p {
  font-size: 0.825rem;
  color: var(--color-muted);
}

.partner-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--color-primary);
}

.partner-link:hover {
  gap: 8px;
}

/* ---------- 兼容技术服务商列表 ---------- */
.compat-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 860px;
  margin: 0 auto;
}

.compat-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 28px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-decoration: none;
  cursor: pointer;
}

.compat-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.compat-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-dark);
  min-width: 160px;
  flex-shrink: 0;
}

.compat-desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  flex: 1;
}

.compat-arrow {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--color-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .compat-item {
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 20px;
  }
  .compat-name {
    min-width: auto;
    width: 100%;
  }
  .compat-desc {
    width: calc(100% - 100px);
  }
  .compat-arrow {
    width: auto;
  }
}

/* ---------- CTA 区域 ---------- */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: var(--gradient-hero);
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(220, 38, 38, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(185, 28, 28, 0.16) 0%, transparent 50%);
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* ---------- 关于我们 ---------- */
.about-intro {
  display: block;
  max-width: 800px;
  margin: 0 auto;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 24px;
}

.about-text p {
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.9;
  margin-bottom: 20px;
}

/* ---------- 联系我们 ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info-card {
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -30%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(220, 38, 38, 0.1);
}

.contact-info-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}

.contact-info-card > p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
  position: relative;
  z-index: 2;
}

.contact-info-list {
  position: relative;
  z-index: 2;
}

.contact-info-item {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-accent);
}

.contact-info-item h5 {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 4px;
  font-weight: 400;
}

.contact-info-item p {
  font-size: 1.05rem;
  color: var(--color-white);
  font-weight: 500;
}

/* ---------- 表单 ---------- */
.contact-form-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-md);
}

.contact-form-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.contact-form-card > p {
  color: var(--color-muted);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-slate);
  margin-bottom: 8px;
}

.form-label .required {
  color: #ef4444;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 16px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  justify-content: center;
}

.form-note {
  font-size: 0.825rem;
  color: var(--color-muted);
  margin-top: 16px;
  text-align: center;
}

/* ---------- 服务详情 ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 100px;
}

.service-detail:last-child {
  margin-bottom: 0;
}

.service-detail:nth-child(even) .service-detail-text {
  order: 2;
}

.service-detail-text h3 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.service-detail-text p {
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.9;
  margin-bottom: 24px;
}

.service-detail-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.service-detail-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--color-text);
}

.service-detail-list li svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
}

.service-detail-visual {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  padding: 60px;
  text-align: center;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-detail-visual .big-icon {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 12px 40px rgba(220, 38, 38, 0.3);
}

.service-detail-visual .big-icon svg {
  width: 60px;
  height: 60px;
  stroke: var(--color-white);
}

.service-detail-visual h4 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-dark);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .nav-logo {
  margin-bottom: 20px;
}

.footer-brand .nav-logo .logo-name {
  color: var(--color-white);
}

.footer-brand .nav-logo .logo-sub {
  color: rgba(255, 255, 255, 0.5);
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  max-width: 340px;
}

.footer-col h5 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-contact-item {
  display: flex;
  gap: 10px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 12px;
  align-items: flex-start;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-icp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-icp a {
  color: rgba(255, 255, 255, 0.4);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-icp a:hover {
  color: rgba(255, 255, 255, 0.7);
}

.footer-icp .police-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-icp .police-badge svg {
  width: 16px;
  height: 16px;
}

.footer-copyright {
  margin-top: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.3);
}

.footer-record {
  margin-top: 6px;
  font-size: 0.9rem;
}

.footer-record a {
  color: rgba(255, 255, 255, 0.3);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s ease;
}

.footer-record a:hover {
  color: rgba(255, 255, 255, 0.6);
}

.footer-record svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ---------- 滚动动画 ---------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
}

/* ---------- 响应式 ---------- */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    border-top: 1px solid var(--color-border);
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-link {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    white-space: normal;
    text-align: center;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 8px;
    text-align: center;
  }

  .nav-cta .btn {
    display: block;
    width: 100%;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-desc {
    font-size: 1.05rem;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.65rem;
  }

  .section-subtitle {
    max-width: 480px;
  }

  .about-intro,
  .contact-layout,
  .service-detail {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .service-detail:nth-child(even) .service-detail-text {
    order: 0;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-banner {
    padding: 130px 0 60px;
  }

  .page-banner h1 {
    font-size: 2rem;
  }
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 2rem;
  }

  .footer-main {
    grid-template-columns: 1fr;
  }

  .service-detail-list {
    grid-template-columns: 1fr;
  }

  .btn {
    padding: 12px 28px;
    font-size: 0.95rem;
  }

  .container {
    padding: 0 20px;
  }
}